Selaus avainsanan mukaan kokoelmassa "ball bearings"Väitöskirjat

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    • Reduction of non-circulating bearing currents by electrical machine design 

      Vostrov, Konstantin
      Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 22.09.2023)
      Electrical machines and drive systems play a crucial role in industrial processes and everyday life. Electrical drive systems that are capable of operating in the variable speed mode allow applying electric motors for the ...

    • Study of inverter-induced bearing damage monitoring in variable-speed-driven motor systems 

      Romanenko, Aleksei
      Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 13.12.2017)
      Bearing currents are parasitic phenomenon which is commonly present inmodern inverterdriven motors. At this date the root causes of this phenomenon can be considered as well identified - mainly occurring due to magnetic ...